How far is Byron, WI from City of Janesville, WI?
The driving distance from Byron, WI to City of Janesville, WI is about 88.4 miles (142.2 km), with a travel time of about 01h 43m by car.
- The straight-line flight distance is about 72.6 miles (116.8 km).
- For a round trip, plan for roughly 03h 26m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 01h 43m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Jefferson County, New York
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms
Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Byron and City of Janesville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Byron and City of Janesville.
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1
Start on State Highway 175
4.5 mi · 8 min · State Highway 175
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2
Continue on Milwaukee Street
1347 ft · 27 sec · Milwaukee Street
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3
Continue on State Highway 67
3.4 mi · 6 min · State Highway 67
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4
Enter the roundabout and take exit 2 toward State Highway 67
48 m · 2 sec · State Highway 67
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5
Exit the roundabout onto State Highway 67
1.2 km · 1 min · State Highway 67
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6
Continue on North Milwaukee Street
2231 ft · 40 sec · North Milwaukee Street
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7
Turn right onto Mayville Street
2559 ft · 43 sec · Mayville Street
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8
Continue on State Highway 67
3.6 mi · 5 min · State Highway 67
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9
Continue on North Main Street
1.7 mi · 3 min · North Main Street
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10
Turn right onto Horicon Street
1 mi · 3 min · Horicon Street
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11
Continue on State Highway 28
4.3 mi · 8 min · State Highway 28
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12
At the end of the road, turn right onto West Lake Street
2487 ft · 49 sec · West Lake Street
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13
Turn left onto Vine Street
791 ft · 14 sec · Vine Street
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14
Continue on Barstow Street
1679 ft · 28 sec · Barstow Street
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15
Continue on Main Street
1296 ft · 24 sec · Main Street
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16
Turn right onto Washington Street
1 km · 57 sec · Washington Street
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17
Continue on State Highway 33
2.2 mi · 3 min · State Highway 33
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18
Turn left onto State Highway 26
1.5 mi · 2 min · State Highway 26
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19
Continue on North Main Street
1.5 km · 2 min · North Main Street
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20
Turn right onto West North Street
2962 ft · 1 min · West North Street
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21
Turn left onto Western Avenue
1806 ft · 51 sec · Western Avenue
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22
Turn right onto State Highway 26
22.8 mi · 28 min · State Highway 26
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23
Continue straight
34.8 mi · 46 min
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24
Turn left onto East Memorial Drive
80 m · 12 sec · East Memorial Drive
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25
Continue on North Garfield Avenue
2552 ft · 2 min · North Garfield Avenue
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26
Turn right onto East Court Street
142 m · 16 sec · East Court Street
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27
Arrive at your destination
0 m · 1 sec · East Court Street
Car Route Details
A richer read on the saved driving route between Byron and City of Janesville.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
State Highway 26
Continue straight
34.8 mi · 00h 46m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Showers And Thunderstorms leaving Byron and Chance Showers And Thunderstorms near City of Janesville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Byron to City of Janesville?
The road trip is about 88.4 miles (142.2 km) and usually takes 01h 43m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Watertown is a useful midpoint, sitting about 43 miles from Byron and 45.3 miles from City of Janesville.
How much longer is the road route than the straight-line distance?
The direct path is about 72.6 miles (116.8 km), while the road route adds roughly 15.8 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 3:04 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $11.77 one way or $23.53 round trip. Estimated CO2 is about 27.7 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms around Byron and Chance Showers And Thunderstorms near City of Janesville.
Stop Ideas Near Watertown
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Watertown.
Columbus
Beaver Dam, WI
Waupun, WI
Madison (South), Wisconsin
Flight Path Map
This map shows the direct air route between Byron and City of Janesville. Straight-line distance: 72.55 mi (116.76 km).
#1 Byron
Civil town in Fond du Lac County, Wisconsin
| Population | 1,348 |
| Coordinates | 43.6522100, -88.4509400 |
| Altitude | 324 |
| Country | United States |
#2 City of Janesville
The most populous city in Rock County, Wisconsin.
| Population | 64,128 |
| Coordinates | 42.6857000, -89.0138500 |
| Altitude | 261 |
| Country | United States |
End: East Court Street (-89.013903, 42.685777)
Estimated Travel Time
Distance: 142 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 56m |
| 40 mph (64.37 km/h) | 02h 12m |
| 50 mph (80.47 km/h) | 01h 45m |
| 60 mph (96.56 km/h) | 01h 28m |
| 70 mph (112.65 km/h) | 01h 15m |
| 80 mph (129 km/h) | 01h 06m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $11.77 | $23.53 |
| Mid-grade | $4.25 | $13.27 | $26.54 |
| Premium | $4.65 | $14.52 | $29.04 |
| Diesel | $5.30 | $16.55 | $33.10 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Wisconsin · May 13, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.